Eric,
Backup the form (scx and sct) first, USE TheFOrm.scx and browse the properties memo. It's likely that you have an entry on one of the properties that VFP can not evaluate correctly. You can change or delete the value from the memo field. save it and see if it'll open in the designer now.
>I was working on it in the designer. I ran it. It created an error (regular error: mispell). I am trying to get back in it with the designer. Nocando!